Min. [f. L. vitr-um glass + -ITE1.] (See quots.)
1866. Lawrence, trans. Cotta’s Rocks Class. (1878), 341. Opal, as a rock, usually only forms very subordinate masses, e.g. the so-called vitrite, which occurs at Meronitz, in Bohemia.
1868. Watts, Dict. Chem., V. 1004. Vitrinopal, Vitrite, the matrix of Bohemian pyrope, related to pitchstone.
